八年级英语上册-Unit-4-Do-it-yourself-Grammar-课件-(共43张PPT)

1、八年级上八年级上cutsentencevt. 剪下，切下，割下剪下，切下，割下n. 句子句子Words review To learn to give instructions To learn to use should & had better To learn the new words: cut, sentenceObjectivesSituation 1(新概念新概念1 lesson 29)Pay attention to the circled words.Giving instructions:We start a sentence with the base form

2、of a verb when we want to tell people what to do.Stop it!Do not stop it! Dont stop it!Stop it, please.Please stop it.1. Lets go to the hall, Mum. (七年级上册七年级上册 U3)2. Wake up, Eddie! (七年级上册七年级上册 U4)3. Great! Lets celebrate. (七年级上册七年级上册 U5)4. Lets have a hamburger. (七年级上册七年级上册 U6)5. Lets eat apples. (七年

3、级上册七年级上册 U6)6. OK. Give me ten. (七年级上册七年级上册 U6)7. Lets go to the supermarket. (七年级下册七年级下册 U3)8. Lets go down here. (七年级下册七年级下册 U4)9. Dont be afraid. Come with me. (七年级下册七年级下册 U4)10. Hurry up, Eddie. (七年级下册七年级下册 U6)11. Please bring me something to eat. (七年级下册七年级下册 U8)12. Lets enjoy ourselves! (八年级上册八

4、年级上册 U3)13. Read them first.14. Do it yourself.15. Stop it.1. _ to the hall, Mum. 2. _ up, Eddie! 3. Great! _. 4. _ a hamburger. 5. _ apples. 6. OK. _ me ten. 7. _ to the supermarket. 8. _ down here.9. _ afraid. Come with me. Lets goWakeLets celebrateLets haveLets eatGiveLets goLets goDont bego Read

5、y?10. _ up, Eddie. 11. Please _ me something to eat. 12. _ ourselves!13. _ them first.14. _ it yourself.15. _ it.HurrybringLets enjoyReadDoStop1. Kate, _ your homework here tomorrow.A. bring B. brings C. to bring D. bringing2. _ late again, Bill!A. Dont to be B. Dont be C. Not be D. Be not以上我们已经通过归纳

6、总结和练习以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，对本课的语法内容有了一定的了解，下面就让我们根据下面就让我们根据之前练习的考察情之前练习的考察情况进一步选择讲解况进一步选择讲解该语法项的重难点。该语法项的重难点。1. 祈使句的概念祈使句的概念 祈使句表示请求、命令等。它的主语是祈使句表示请求、命令等。它的主语是you(听话人听话人)，通常不说出。祈使句肯定结，通常不说出。祈使句肯定结构中的谓语动词一律用动词原形。祈使句构中的谓语动词一律用动词原形。祈使句末用惊叹号或句号，句子用降调。末用惊叹号或句号，句子用降调。 2. 祈使句的结构祈使句的结构 1) 祈使句的肯定结构祈

7、使句的肯定结构 Do型型(以行为动词原形开头以行为动词原形开头)，例如：，例如： Sit down!坐下！坐下！ Stand up!起立！起立！ Be型型(以以be开头开头)，例如：，例如： Be quiet! 安静！安静！ Be careful！小心！小心！ Let型型(以以let开头开头)，例如：，例如： Let me try. 让我试试看。让我试试看。 Lets look at the map. 让我们看看地图。让我们看看地图。 lets是是let us的简略式。的简略式。 表示请求、劝告的祈使句还常常在句前表示请求、劝告的祈使句还常常在句前或句末加上或句末加上please，构成句式：，

8、构成句式：Please 或或 , please. 以使语气更加缓和或客气。以使语气更加缓和或客气。例如：例如： 请站起来。请站起来。 Please stand up. = Stand up, please. 请休息一下。请休息一下。 Please have a rest. = Have a rest, please. 2) 祈使句的否定结构，一律在肯定结构祈使句的否定结构，一律在肯定结构前加前加 Do not (Dont)。例如：。例如： Dont go there, please. 请别去那儿。请别去那儿。Dont be late for class! 上课别迟到！上课别迟到！Dont le

9、t him in. 不要让他进来。不要让他进来。 注意：注意：Lets型祈使句，其否定式也可用型祈使句，其否定式也可用 Lets not ，例如：，例如： Lets not have a rest. 咱们别休息了。咱们别休息了。 Lets not sit here! 我们不要坐在这儿！我们不要坐在这儿！ P47 Read the sentences together Cut Write Draw Look trydont give Keep Lets play a game! Touch your nose. Stand up. Put up your hands. Dont keep you

10、r books open. Dont close your eyes.Situation 2Youd better go home now before the rain starts. You should go home now before the rain starts. Suzy doesnt think her cousin knows much about DIY either. What did she advise him to do?She advised him to take a course in DIY.What do you think she said to h

11、im about this?You should take a course in DIY.You had better take a course in DIY.Tip: Give advice and tell people what we think is the best or right thing to do. The tone of had better is stronger than should. Turn to P48. Lets read the sentences together. Do the exercise on P48.You should/had bett

12、er buy some to learn more about it. You should not/had better not play with them when you do DIY jobs.You should/had better be patient.You should not/had better not begin your work without reading them.You should/had better join a DIY club to learn more about it.Youre giving advice to your friends.

13、Rewrite the following sentences using should (not) and had better (not).1. Its time for class. Put your comic books away.You should/had better put your comic books away.2. Your English is not good enough. Read more to improve(提高提高) it.You should/had better turn your mobile phone off in class.3. Turn

14、 your mobile phone off in class.You should/had better turn your mobile phone off in class.4. Dont make the same mistake again.You should not/had better not make the same mistake again.Can you give me some advice?I cant sleep well at night and I feel tired during the day. Tips: You should(not)/had be

15、tter. 1.We had better go back to the station now, Ken. (新概念新概念1 L95)2. I wont charge you this time. But youd better not do it again! (新概念新概念1 L129)3. Well, next time youd better take my advice! (新概念新概念1 L129)4. He suggested that a double railway- tunnel should be built. (新概念新概念2 L64)5. Of course, we

16、 should arrest him (新概念新概念2 L65)6. What should we do?7. Youd better get some tools.1. We _back to the station now, Ken. 2. I wont charge you this time. But you _it again! 3. Well, next time you _ my advice!4. He suggested that a double railway- tunnel _. 5. Of course, we _ him 6. What _ we _?7. You

17、_ some tools.had better gohad better not dohad better takeshould be built should arrestshouldhad better getdogo Ready?1. You had better _ on your coat. A. to put B. putting C. to putting D. put 2. If you really want to lose some weight, I advise that you _ stop eating fast food. A. may B. would C. c

18、ould D. should 以上我们已经通过归纳总结和练习以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，对本课的语法内容有了一定的了解，下面就让我们根据下面就让我们根据之前练习的考察情之前练习的考察情况进一步选择讲解况进一步选择讲解该语法项的重难点。该语法项的重难点。当我们给他人提建议时，可以用当我们给他人提建议时，可以用had better和和should，表示，表示“最好最好”或或“应该应该”做某事，做某事， had better的语气比的语气比should强一些。强一些。You had better refrigerate the beer before drinkin

19、g it. 喝啤酒前你最好先把它冷冻一下。喝啤酒前你最好先把它冷冻一下。You should exercise more. 你应该多锻炼。你应该多锻炼。had better (常简略为常简略为d better)，是一固定，是一固定词组，后面必须跟动词原形，没有人称和词组，后面必须跟动词原形，没有人称和数的变化。构成：数的变化。构成：had better do sth. 句型。句型。Youd better go to hospital at once. 你最好立即去医院看病。你最好立即去医院看病。 Tom, youd better go there today. 汤姆，你最好今天去那儿。汤姆，你

20、最好今天去那儿。had better 的否定式是将的否定式是将not直接放在直接放在had better的后面。的后面。 You had better not miss the last bus. 你最好不要错过末班公共汽车。你最好不要错过末班公共汽车。 should 后面也要跟动词原形，且没有人后面也要跟动词原形，且没有人称和数的变化。称和数的变化。You should stop smoking. 你应该戒烟。你应该戒烟。should 的否定式是的否定式是should not/shouldnt。You shouldnt drink and drive. 你不应该喝酒后开车。你不应该喝酒后开车

21、。1. 祈使句的用法。祈使句的用法。2. had better (not) should (not)/shouldntI. 句型转换。句型转换。1. Will you please read it again more slowly? (改为祈使句改为祈使句)_ again more slowly, please.2. If you dont listen to me, Ill go. (改为同义句改为同义句) _ me, or Ill go.3. The teachers often tell the students not to be careless. (改为祈使句改为祈使句)_ careless, please.4. Please sit next to Nancy. (改为否定句改为否定句)_ next to Nancy.Read it Listen to Dont be Dont sitII. 完成句子。完成句子。1. 你最好不要用铅笔写这个报告。你最好不要用铅笔写这个报告。 _with a pencil.2.下次你和他说话